This is a QGIS plugin which visualizes DEM and vector data in 3D on web browsers. You can build various kinds of 3D objects and generate files for web publishing in simple procedure. In addition, you can save the 3D model in glTF format for 3DCG or 3D printing.
Online document: https://minorua.github.io/Qgis2threejs/docs/
See plugin wiki page.
This plugin is powered by the following JavaScript libraries and resources:
tween.js for animation
Potree Core for Potree data support
dat-gui for export based on 3DViewer(dat-gui) template
Font Awesome icons for export based on Mobile template
Python ported version of earcut for Overlay polygon triangulation
unfetch fetch polyfill